I have had my outlook since January and it is just now starting to do the same thing as you are talking about. I havn't contacted Bully Dog but I am sute that they will take it back and repair it for no charge as long as you are within the warranty period. I have been happy with the performance set at 90 HP, but I think that I am getting alot of injector noise, and I am some what worried that it may do some damage. I recently pulled my boat 8k, for about 800 miles and I set the programmer back to the tow (50hp) setting. The performance and milage is not as high, but the truck is quiter, alot less smoke. I think I will leave it there.